The survey found that the mean systolic BP by which doctors were concerned was 148.8mmHg and half would act immediately unless systolic BP was over 168.2mmHg.
Respondents said that guideline advice was the factor that had the greatest influence on their approach to treatment. European and NICE guidelines recommend treatment if systolic BP is 140mmHg. Most of the respondents to the survey were GPs (59 per cent) and 286 were from the UK (11 per cent).
Reseachers said that delays in starting treatment were putting patients at increased cardiovascular risk.